Object detection device, learning device and computer readable medium

Abstract

A data extraction unit ( 23 ) extracts, out of image data obtained by photographing a photographing region with a photographing device ( 41 ), image data of a region including a detection target region, as target data, and extracts, out of the target data, image data of an enlarging region, as partial data. A size modification unit ( 24 ) size-modifies each of the target data and the partial data to a request size requested by an object detection model being a model that detects an object from image data. An object detection unit ( 25 ) inputs each of the size-modified target data and the size-modified partial data to the object detection model, and detects a target object from each of the target data and the partial data.

1 . An object detection device comprising:
 processing circuitry   to set image data obtained by photographing a detection target region with a photographing device, as target data, and to extract, out of the target data, image data of an enlarging region, as partial data;   to size-modify each of the target data and the partial data which are extracted, to a request size requested by an object detection model being a model that detects an object from image data; and   to input each of the target data and the partial data which are size-modified, to the object detection model, and to detect a target object from each of the target data and the partial data.   
     
     
         2 . The object detection device according to  claim 1 ,
 wherein the processing circuitry generates integration result data by integrating first result data and second result data such that same objects form one object, the first result data expressing a result detected from the target data, the second result data having been detected from the partial data.   
     
     
         3 . The object detection device according to  claim 1 ,
 wherein the processing circuitry supplies each of the target data and the partial data to the object detection model as learning data, and causes the object detection model to learn the target data and the partial data.   
     
     
         4 . The object detection device according to  claim 2 ,
 wherein the processing circuitry supplies each of the target data and the partial data to the object detection model as learning data, and causes the object detection model to learn the target data and the partial data.   
     
     
         5 . A non-transitory computer-readable recording medium recorded with an object detection program which causes a computer to function as an object detection device that performs:
 a data extraction process of setting image data obtained by photographing a detection target region with a photographing device, as target data, and extracting, out of the target data, image data of an enlarging region, as partial data;   a size modification process of size-modifying each of the target data and the partial data which are extracted by the data extraction process, to a request size requested by an object detection model being a model that detects an object from image data; and   an object detection process of inputting each of the target data and the partial data which are size-modified by the size modification process, to the object detection model, and detecting a target object from each of the target data and the partial data.   
     
     
         6 . A learning device comprising:
 processing circuitry   to set image data obtained by a photographing device, as target data, and to extract, out of the target data, image data of an enlarging region, as partial data;   to size-modify each of the target data and the partial data which are extracted, to a request size requested by an object detection model being a model that detects an object from image data; and   to take each of the target data and the partial data which are size-modified, as learning data, and to generate the object detection model.   
     
     
         7 . A non-transitory computer-readable recording medium recorded with a learning program which causes a computer to function as a learning device that performs:
 a data extraction process of setting image data obtained by a photographing device, as target data, and extracting, out of the target data, image data of an enlarging region, as partial data;   a size modification process of size-modifying each of the target data and the partial data which are extracted by the data extraction process, to a request size requested by an object detection model being a model that detects an object from image data; and   a learning process of taking each of the target data and the partial data which are size-modified by the size modification process, as learning data, and generating the object detection model.